
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
:
Automatic driving lights
inoperative *T
he light sensor for automatic driving lights is malfunctioning. #
Consult a quali/ed specialist workshop.
:
Active Light System inoper-
ative *T
he active headlamps are malfunctioning. #
Consult a quali/ed specialist workshop.
:
Switch on headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch totheL orà position.
:
Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position. 382 382
Display messages and
warning/indicator lamps

W
W
ar
ar ning and indicat
ning and indicat or lam
or lamps
ps Ov
Ov
er
ervie
vie w of indicat
w of indicat or and w
or and war
arning lam
ning lam ps
ps Some systems will per
form a self-test when the
ve hicle is switched on. Some indicator and warn-
ing lamps may brie0y light up or 0ash. This beha v-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or 0as haTer theve hicle has been star ted or dur-
ing a journe y.
Ins
Ins tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown. Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 434)
ü Seat belt (/ page 434)
ï Trailer hitch (/ page 435)
Ù Powe r steering (/ page 435)
ÿ Coolanttemp erature (/ page 436)
; Engine diagnostics (/ page 436)
% V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 436)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 436)
! Electric parking brake (yellow)
(/page 440)
! Electric parking brake (red)
(/page 440)
J Brakes (yellow) (/ page 440)
J Brakes (red) (/ page 440)
L Distancewarning (/ page 442)
Ó Active Brake Assist (/ page 442)
ê Active Brake Assist (/ page 442)ä
AIR BODYCONTROL (/ page 442)
ä DYNAMIC BODY CONTROL
(/ page 442)
! ABS (/page 443)
÷ ESP®
(/ page 443)
å ESP®
OFF (/ page 443)
h Tyre pressure monitoring system
(/ page 446)
T Standing lights (/ page 129)
L Low beam (/ page 129)
K High beam (/ page 131)
#! Turn signal lights (/ page 131)
R Rear fog light (/ page 129)
Symbols on t
Symbols on t he centr he central display:
al displ ay:
É DriveAway Assist (/ page 240)
L CrossTra1c Ale rt (/ page 241)
º Manoeuv ring brake function (/ page 241) Display messa
ges and warning/indicator lamps
433
433

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ü
Seat belt warning lamp
lights up *T
he red seat belt warning lamp lights up once theve hicle has star ted.
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger tofasten their seat belts. #
Fasten your seat belt (/ page 45).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. V
V
ehicle
ehicle W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ù
Po we r steering warning
lamp (red) *T
he red po wer steering warning lamp is lit while theve hicle is running.
The po wer assistance or the steering itself is malfunctioning. &
W
WARNING
ARNING Risk of accident if steering capability is impaired
If th e steering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and tra1c conditions. Do not
continue driving under any circums tances. #
Consult a quali/ed speciali stwo rkshop. #
Notethe messages on the instrument displa y. Display messages and
warning/indicator lamps
435
435

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
#
Electrical fault warning lamp *T
hered electrical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the instrument displa y.
8
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser vewarning lamp lights up while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. Display messages and
warning/indicator lamps
439
439

Dr
Dr
iving syst
iving syst ems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
L
Wa rning lamp for distance
wa rning function *T
he red distance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obstacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the distance.
Fu nction of Active Brake Assist (/ page 210).
ê Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
The system is switched o. or thera nge of functions has been automatically restric ted.
This may be the case if ano ther driving system has been activated. #
Obser vethe no tes on Active Brake Assist (/ page 210).
Ó
Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
Due todirty sensors or a malfunction, the system is not available or thera nge of functions is restric ted. #
Notethe messages on the instrument displa y.442
442
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. ÷
ESP ®
wa rning lamp 0ashes *
The yellow ESP ®
wa rning lamp 0ashes while theve hicle is in motion.
One or more wheels ha vereached their grip limit (/ page 191). #
Adapt your driving style tosuit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights up *
The yellow ESP ®
wa rning lamp is lit while theve hicle is running.
ESP ®
is malfunctioning.
Other driving systems and driving sa fety systems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the instrument displa y. &
W
WARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot carr y outvehicle stabilisation. In addition, other driving saf ety sy stems are
swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. 444
444
Displ
aymessages and warning/indicator lamps

T
T
yr
yr e pr
e pr essur
essur e monit
e monit or
or W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
h
Ty re pressure monitoring
system warning lamp 0ashes *The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) 0ashes for appr oximately one minute and
th en remains lit.
The tyre pressure monitor is malfunctioning. &
W
WARNING
ARNING There is a risk of an accident if the tyre pressure monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tyres.
Ty res with insu1cient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring system checked at a quali/ed specialist workshop. h
Ty re pressure monitoring
system warning lamp lights
up *T
he yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has de tected tyre pressure loss in at least one of the tyres. &
W
WARNING
ARNING Risk of an accident due toinsu1cient tyre pressure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y.446
446
Display message
s andwarning/indicator lamps

1, 2, 3 ...
1, 2, 3 ...
48 V on-boar
48 V on-boar d electr
d electrical syst
ical syst em
em
Operating saf ety...................................... 23
360° Came ra
360° Camera
Care...................................................... 315
Fu nction................................................ 227
Switching automatic mode on/o.
(r ev ersing camera)................................. 231 A
A
A/C function
A/C function Activating/deactivating (operating
unit)....................................................... 147
MBUX.................................................... 148
ABS (Anti-loc
ABS (Anti-loc k Br
k Braking Syst
aking Syst em)
em), Anti-lock
braking system............................................. 190
A
A cceler
cceler ation
ation
Kickdown............................................... 174
Optimised acceleration.......................... 161
A
A ccident, emerg
ccident, emerg ency call
ency call............................. 294
A
A cous
coustic loc tic loc king
kingv
ver
er i/cation
i/cation signal, acti-
signal, acti-
v
v ating/deactiv
ating/deactiv ating
ating........................................ 76 A
A
ctiv
ctiv e Blind Spo
e Blind Spo t Assist
t Assist
Brake application................................... 218
Fu nction................................................ 216
Tr ailer operatio n.................................... .218
A
A ctiv ctiv e bonnet
e bonnet, Pedest rian pr otection............ 306
A A ctiv ctiv e Br
e Br ak
ake Assist
e Assist
Fu nction................................................ 210
Setting.................................................. .214
A
A ctiv
ctiv e Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC
ONIC
Ac tivating............................................... 202
Ac tive Emer gency Stop Assist................ 209
Calling up a speed................................. 202
Deactivating........................................... 202
Fu nction................................................ 200
Inc reasing/decreasing the speed...........2 02
Ro ute-based speed adap tation............... 205
St oring a speed...................................... 202
A A ctiv
ctiv e Emerg
e Emerg encySt
ency Stop Assist
op Assist ,
Driving system............................................ .209
A
A ctiv
ctiv e Lane K
e Lane K eeping Assist
eeping Assist
Ac tivating/deactivating.......................... 221
Fu nction................................................ 219
Setting the sensitivity.............................2 22
Tr ailer operatio n.................................... .219 A
A ctiv
ctiv e light function
e light function.....................................1 32
A
A ctiv
ctiv e P
e Par
arking Assist
king Assist ,Pa rking assistance systems
Au tomatic braking function................... .240
Exiting a parking space. ......................... 238
Manoeuvring brake function................... 241
Pa rking.................................................. 237
Pa using.................................................. 239
A A ctiv
ctiv e Ser
e Ser vice Sy
vice Sy st
stem PL
em PL US
US,
ASS YST PLUS............................................. .305
A
A ctiv
ctiv e Speed Limit Assist
e Speed Limit Assist .............................2 05
A
A ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist
Ac tivating/deactivating.......................... 209
Ac tive Emer gency Stop Assist................ 209
Fu nction................................................ 207
A
A ctiv
ctiv eSt
e St op-and-Go Assist
op-and-Go Assist
Fu nction................................................ 207
A
A ctiv
ctiv e
eTr
Tra1c
a1c Jam Assist
Jam Assist
Ac tivating/deactivating.......................... 207
A
A dap
dap tiv
tive br
e br ak
ake lights
e lights.................................... 195
A
A dap
dap tiv
tive cr
e cr uise contr
uise control ol,Active Distance
Assist DISTRONIC........................................ 205
A A dap
dap tiv
tive Highbeam Assist
e Highbeam Assist , High beam
Ac tivating/deactivating.......................... 135 448
448
Index